AutoCodes – Generic – B1D71

B1D71 Code - Seat Front Vertical Position Sensor Circuit Low

Quick Answer

The power seat system receives battery current through a 50 amp fuse in the Power Distribution Center (PDC) so that the power seats remain operational, regardless of the ignition switch position. Common causes include Faulty Seat Front Vertical Position Sensor, Seat Front Vertical Position Sensor harness is open or shorted, Seat Front Vertical Position Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B1D71 indicates Seat Front Vertical Position Sensor Circuit Low.
Common causes: Common causes include Faulty Seat Front Vertical Position Sensor, Seat Front Vertical Position Sensor harness is open or shorted, Seat Front Vertical Position Sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 859

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 02, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1D71 Description

The power seat system receives battery current through a 50 amp fuse in the Power Distribution Center (PDC) so that the power seats remain operational, regardless of the ignition switch position.
When a power seat switch is actuated, a battery feed and a ground path are applied through the power seat switch contacts to the appropriate motor or motors. The motor and drive unit operate to move the seat in the selected direction until the switch is released, or until the travel limit of the power seat track is reached. When the switch is moved in the opposite direction, the battery feed and ground path to the motor is reversed through the switch contacts. This causes the motor to run in the opposite direction.
When the seat motor is activated sensor supply voltage is switched on whenever motor is activated. If sensor voltage is not within a specified range this Diagnostic Trouble Code (DTC) will set. This DTC will only set when the seat switch is moved in the same direction three consecutive times.

OBDII Code B1D71 - Seat Front Vertical Position Sensor Circuit Low - AutoCodes.com — B1D71 Code - Seat Front Vertical Position Sensor Circuit Low

What does this mean?

What are the Possible Causes of the DTC B1D71?

Faulty Seat Front Vertical Position Sensor
Seat Front Vertical Position Sensor harness is open or shorted
Seat Front Vertical Position Sensor circuit poor electrical connection
Front Vertical Seat Adjuster Motor
Faulty Memory Seat Module

How to Fix the DTC B1D71?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1D71 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the B1D71 code?

Need more information on how to fix the B1D71 code? Get Access to Factory Service Manuals

Need Help with the Code?

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Information for Specific Makes

B1D71 Chrysler — Seat Front Vertical Position Sensor Circuit Low
B1D71 Dodge — Seat Front Vertical Position Sensor Circuit Low
B1D71 Jeep — Seat Front Vertical Position Sensor Circuit Low
B1D71 RAM — Seat Front Vertical Position Sensor Circuit Low

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1D71 Code

1. What are the common symptoms of OBDII code B1D71 (Seat Front Vertical Position Sensor Circuit Low)?

The common symptoms of this code may include inaccurate seat position adjustment, malfunctioning seat memory functions, and possibly an illuminated warning light on the dashboard.

2. What can cause the OBDII code B1D71 to trigger?

The B1D71 code is typically triggered by a faulty seat front vertical position sensor, damaged wiring or connectors in the sensor circuit, or a malfunctioning control module.

3. How can I diagnose the cause of the B1D71 code?

Diagnosing the cause of the B1D71 code involves using a scan tool to retrieve the specific fault code, checking the wiring and connectors for damage, testing the seat front vertical position sensor for proper function, and inspecting the control module.

4. Are there any quick repair tips for fixing the B1D71 code?

Quick repair tips for addressing the B1D71 code may include checking and repairing any damaged wiring or connectors, recalibrating the seat position sensor, or replacing the faulty sensor or control module if necessary.

5. Can I drive my vehicle with the B1D71 code present?

It is generally not recommended to drive your vehicle with the B1D71 code present, as it can affect the proper functioning of the seat adjustment system and compromise safety in the event of an accident.

6. How much does it typically cost to repair the B1D71 code?

The cost of repairing the B1D71 code can vary depending on the underlying cause, but it may involve expenses for parts replacement, labor costs, and diagnostic fees at a dealership or repair shop.

7. Is the B1D71 code a serious issue that requires immediate attention?

While the B1D71 code may not pose an immediate safety risk, it is still important to address the issue promptly to ensure the proper functioning of the seat adjustment system and to prevent any potential future problems.

8. Can I reset the B1D71 code without fixing the underlying issue?

Resetting the B1D71 code without fixing the underlying issue will only temporarily clear the fault code. The problem will likely resurface, and it is crucial to address the root cause to prevent further issues.

9. How long does it take to repair the B1D71 code?

The repair time for the B1D71 code can vary depending on the specific cause of the issue, the availability of parts, and the expertise of the technician. It is best to consult with a professional for an accurate estimate.

10. Will the B1D71 code cause my airbags to deploy unexpectedly?

The B1D71 code is related to the seat position sensor and is unlikely to cause the airbags to deploy unexpectedly. However, it is still important to address the issue to ensure all safety systems are functioning correctly.